The split would have meant that many people who have CVS Health drug plans would no longer be able to pick up their prescriptions at Walmart locations.

“With CVS and Walmart successfully reconciling their differences, they each win, and so do consumers,” Numerof told TheDCNF in an email statement. “Those that rely on Walmart’s convenient accessibility – especially in rural areas where other reasonable options may not exist – are the most notable winners. Quickly resolving this roadblock shows just how much of an impact this disagreement could have had on the patients they serve.” (RELATED: Sanders And Trump Could Become Strange Bedfellows In Fight Against High Drug Prices)

During the dispute, Walmart maintained that CVS was trying to control where customers filled their prescriptions, according to Bloomberg. Walmart has a reputation for making drugs affordable, including through its $4 generic prescription drug program.

CVS maintained that Walmart, which has leverage as one of the biggest pharmacy operators in the U.S., was pressing for higher reimbursements from CVS Caremark, its PBM subsidiary.

“Walmart’s requested rates would ultimately result in higher costs for our clients and consumers,” CVS Caremark President Derica Rice said in a statement Tuesday. “While we have enjoyed a long relationship with Walmart as a low cost provider in our broad national networks, based on our commitment to helping our clients and consumers manage rising pharmacy costs, we simply could not agree to their recent demands for an increase in reimbursement.”

CVS Caremark doesn’t just account for a portion of CVS revenue, it makes up most of its revenue, according to Bloomberg. More than 93 million Americans have CVS-administered prescription drug plans. The CVS-Walmart split would not have affected Medicare Part D beneficiaries or customers picking up prescriptions at Sam’s Clubs, according to the CVS statement.

PBMs like CVS Caremark often receive a bad rap because of their lack of transparency. Healthcare Finance News explains PBMs this way:

Pharmacy benefit managers are uniquely an American concept, acting as third-party administrators of prescription drug programs for commercial health plans, self-insured employer plans, Medicare Part D plans, and state government employee plans.

PBMs are often blamed for high drug prices. Senate Finance Committee Chair Chuck Grassley revealed his three-part initial plan to cut drug prices Wednesday. His plan did not include rethinking legislation surrounding PBMs, but he has discussed the need for oversight of them.

“I’ll also continue diligently pursuing oversight of both the public and private sectors of health care, including addressing health care consolidation and anticompetitive concerns, from supply chain middlemen to pharmacy benefit managers (PBMs) to hospitals and health insurers,” the Iowa Republican said in a Jan. 9 statement.

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